In early February, after 63 days of effort, 20-year-old Czech Adam Ondra made the first ascent of one of the world’s hardest sport climbs at Oliana, Spain. The route had originally been bolted by Chris Sharma, who had almost made the send himself, but fell from what Ondra described as an “easy” move. As Ondra said, “bummer.”

Last week, Sharma, who had made the first ascent of Stoking the Fire 5.15b last month, made the second ascent of the incredible 60 m line.

Ondra said La Dura Dura 5.15c was the hardest climb he had ever done; harder, even than Change, his 5.15c in Flatlanger cave in Norway, making it a candidate for the world’s hardest sport climb.